Fix a bug in msg when reporting a synonym for publisher.

modules/harvest_tools/msg.py

@@ -127,7 +127,7 @@ class Msg(Storage):
                         elif tablename == "countries":
                             self.synonym = record.country()
                         elif tablename == "publishers":
-                            self.synonym = record.publisher()
+                            self.synonym = record.paper_editor()
 
         if year is None and record is not None:
             year = record.year()